Assessment of Endocrine System

Question 1

Cellular Regulation of

Answer 1

• Body functions
• Maintained by hormones
  > regulated by endocrine system

Question 2

Primary Goal

Answer 2

• Maintain homeostasis
• Controls body functions:
  > metabolism
  > nutrition
  > elimination
  > temperature
  > fluid & electrolyte balance
  > growth
  > reproduction
• Regulated by hormones

Question 3

Hormone Release

Answer 3

• Secreted from endocrine glands into blood for transporation
• Released as response to altered cellular envir’t
• Maintain lvl of another hormone or substance

Question 4

Positive & Negative Feedback Mechanisms

Answer 4

• Endocrine syst problems & disorders r/t:
  > an excess (hyper secretion) of a specific hormone
  > a deficiency (hypo secretion) of a specific hormone
  > poor hormone-receptor interactions resulting in dcrd responsiveness of target tissue

Question 5

Treatment Goal

Answer 5

Control symptoms
With replacing missing hormone naturally or synthetically

Question 6

Positive Feedback

Answer 6

• More is more
• When a trigger happens in the body, body creates hormones that continue to add until desired outcome
• Ex:
  > child birth (uterine contractions)
  > clotting cascade
• Less common

Question 7

Negative Feedback

Answer 7

• Changing response to stimulus dcrs synthesis & secretion of a hormone
• Lvls are added or released
• Signals an endocrine gland to secrete a hormone in response to a body change to cause a reaction tht will result in actions to oppose the actions of the inital change & restore homeostasis

Question 8

Negative Feedback - Examples

Answer 8

• Dcr serum T3 & T4; stimulates TRH; stimulates TSH: secretes T3 & T4; level normalizes; turns off TSH & TRH
• Blood glucose lvls incr above normal, insulin is released, insulin incrs uptake of glucose in cells, causing dcr in blood gluce lvls